kbuild: do not segfault in modpost if MODVERDIR is not defined

[safe/jmp/linux-2.6] / scripts / Makefile.modpost

diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost
index 94b550e..563e3c5 100644 (file)
--- a/scripts/Makefile.modpost
+++ b/scripts/Makefile.modpost
@@ -30,15 +30,17 @@
 #     - See include/linux/module.h for more details
 
 # Step 4 is solely used to allow module versioning in external modules,
-# where the CRC of each module is retreived from the Module.symers file.
+# where the CRC of each module is retrieved from the Module.symers file.
 
 .PHONY: _modpost
 _modpost: __modpost
 
 include .config
+include scripts/Kbuild.include
 include scripts/Makefile.lib
 
-symverfile := $(objtree)/Module.symvers
+kernelsymfile := $(objtree)/Module.symvers
+modulesymfile := $(KBUILD_EXTMOD)/Modules.symvers
 
 # Step 1), find all modules listed in $(MODVERDIR)/
 __modules := $(sort $(shell grep -h '\.ko' /dev/null $(wildcard $(MODVERDIR)/*.mod)))
@@ -53,7 +55,9 @@ quiet_cmd_modpost = MODPOST
       cmd_modpost = scripts/mod/modpost            \
         $(if $(CONFIG_MODVERSIONS),-m)             \
        $(if $(CONFIG_MODULE_SRCVERSION_ALL),-a,)  \
-       $(if $(KBUILD_EXTMOD),-i,-o) $(symverfile) \
+       $(if $(KBUILD_EXTMOD),-i,-o) $(kernelsymfile) \
+       $(if $(KBUILD_EXTMOD),-I $(modulesymfile)) \
+       $(if $(KBUILD_EXTMOD),-o $(modulesymfile)) \
        $(filter-out FORCE,$^)
 
 .PHONY: __modpost